Home / 15,392.88-21,259.80-11,406.96

Finding the Fourth Proportional to 15,392.88, 21,259.80 and 11,406.96

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Solution

The fourth proportional to 15,392.88, 21,259.80 and 11,406.96 is: 15,754.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,392.88 : 21,259.80 = 11,406.96 : x
  2. Step 2: Convert to fraction form
    15,392.88/21,259.80 = 11,406.96/x
  3. Step 3: Cross multiply
    15,392.88x = 21,259.80 × 11,406.96
  4. Step 4: Simplify right side
    15,392.88x = 242,509,688.21
  5. Step 5: Solve for x
    x = 242,509,688.21/15,392.88
  6. Step 6: Final answer
    x = 15,754.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.